Biological nutrient removal ultimately converts most of the organic materials in wastewater into
A) oxygen, ammonia, and carbon dioxide.
B) nitrogen, water, and carbon dioxide.
C) sugars, vitamins, and minerals.
D) proteins and carbohydrates.
B
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What would the relative humidity of that air be if you brought it inside your house and warmed the air to 21°C?
This question show how relative humidity changes as cold, dry outside air is brought inside and warmed. Figure 12.1 shows that as air warms, the maximum specific humidity increases. Therefore, if the air warms but the amount of water vapor stays the same, its relative humidity decreases. Because of this, many people who live in climates with cold winters use humidifiers in their homes to make the air more comfortable. What will be an ideal response?
Answer the following statement(s) true (T) or false (F)
1. India is a meat exporter. 2. Bhutan encourages tourism. 3. Economic development in the mountain countries is hampered by physical and political isolation and by internal conflicts. 4. Before 1992, Afghanistan had over 200 factories. 5. The Maldives face drowning by a rising ocean level as global warming proceeds.
Explain the features that make dinoflagellates different from other phytoplankton. What will be an ideal response?
A north south oriented shoreline has land to the east and the major storm waves arrive from the southwest. A headland abuts westward along the shoreline and exposes a distinctive black basalt that is rapidly eroded by waves pounding the coast
Where would you expect to find black sand derived from this headland? A) immediately offshore of the headland B) on the beach to the south of the headland C) on the beach to the north of the headland D) only in pocket beaches along the headland